Bishop and King Chess Puzzle

I have a Python coding assignment that is explained in detail in the attached file "readme". The key elements of the required code are in the file "chess_puzzle.py" where additional code can be added. I also have to provide pytest cases (as explained in the readme document) which can be added to the file "test_chess_puzzle.py". the code must pass all the tests! The text file "board_examp.txt" contains a plain board configuration. your help with this assignment would be much appreciated.